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Ships to:
United States
Visit store:
Tornado Alley Tools
Ships to:
United States


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Item Sold
Item condition:
Seller refurbished

Machine is in better than average used condition. Slight damage to the dust housing has been well

... Read more
May 15, 2013 19:50:50 PDT
Winning bid:
US $1,145.00
3 bids ]
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Item location:
Edmond, Oklahoma, United States


eBay item number:
Seller assumes all responsibility for this listing.
Last updated on  May 10, 2013 18:52:23 PDT  View all revisions

Item specifics

Condition: Seller refurbished : Split the cost with friends
An item that has been restored to working order by the eBay seller or a third party not approved by the manufacturer. This means the item has been inspected, cleaned, and repaired to full working order and is in excellent condition. This item may or may not be in original packaging. See the seller’s listing for full details. See all condition definitions- opens in a new window or tab
Seller Notes: Machine is in better than average used condition. Slight damage to the dust housing has been well repaired (see photo and description below). Sander has been refurbished, with replacement of wear parts such as bearings and rubber spring mounts (more below). Does not include dust skirt, but a new dust skirt can be included at a discounted price (details in listing).






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Country of Manufacture:

United States

Tornado Alley Tools

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Photobucket                     ALTO CLARKE OBS-18DC                    Photobucket




E X C E L L E N T   C O N D I T I O N !

MSRP NEW: $2492



This sander did not come with a dust skirt. We sell them for $132 in our store. Win this auction and purchase a dust skirt with it, and we will refund $32 to your PayPal account, giving you a new dust skirt for only $100!


CLICK TO ENLARGE photo 100_5650_zps1c0da454.jpg    CLICK TO ENLARGE photo 100_5656_zps6445de13.jpg

   PHOTO NOTE: Want to see a larger picture? Simply click on any photo, and it will open in Photobucket. Click it again there, and you'll get "the big picture"!


  • Dust collection bag--or connect it to your shop-vac for even better dust removal
  • Safety interlock (black button on side of handle) prevents accidental starting of the sander
  • 12 gauge cord with twist-lock connector.  High quality rubber sheathing; impact-resistant plugs  
  • "Pilot light" LED in plug indicates power connection
  • Thermal protection breaker prevents motor overheat (reset switch is on the top of the motor junction box) 


"Pilot light" in plug indicates connection to power; safety interlock prevents accidental starting [file photos]




The metal "T" handle shows this is Clarke's most recent model. As the pictures show, the sander has very few scrapes or scratches. It does have minor damage on the top of the black plastic dust housing, which has been well repaired using cloth-reinforced Permatex gasket-forming compound. This does not affect the operation or life of the sander.

The cord is in good condition, with minor scuffs and scrapes. The dust bag is brand new. The pad driver grip face is in excellent condition, with only minor wear (see photos below). Very conservatively, it has at least 3/4 of its life remaining.

Unfortunately, this machine did not come with a dust skirt. We do offer a new skirt at a reduced price (see photo and details below in green type).

This sander has been reconditioned. This means that all wear parts have been replaced (whether they needed it or not), and this machine should have approximately the same life as a new one before these parts need replacement again. See photos and details below.

This sander is in EXCELLENT overall condition! It's also a great deal at less than 44% of the retail price of $2492 for a new machine!

Pad driver, with at least 3/4 its life remaining

CLICK TO ENLARGE photo 100_5621_zpsa6d82428.jpg

Left, worst spot on pad driver, a rear corner; right, a typical area in good condition

CLICK TO ENLARGE photo 100_5626_zps0616e2de.jpg   CLICK TO ENLARGE photo 100_5630_zps04210d7b.jpg

This damage to the dust hood (much smaller than the repair area!) has been well repaired, and should not affect operation or life

 photo 100_5677_zpscf65e721.jpg 

Metal T-handle is Clarke's latest model--old style on right (Note: this might be considered a good shopping tip in comparing OBS-18s.)

CLICK TO ENLARGE photo 100_5660_zpsee6136bb.jpg   Photobucket


The sander has been disassembled, thoroughly cleaned, and checked. Any damaged or worn parts are replaced; some are replaced regardless of their appearance, including bearings, rubber springs, thermal circuit breaker, and many fasteners. All "normal" wear parts are new; this sander will have nearly the operation and life of a brand new machine.

Disassembled for cleaning and inspection

CLICK TO ENLARGE photo 100_5610_zps20c27617.jpg CLICK TO ENLARGE photo 100_5616_zps118b0b94.jpg

New parts!

 photo 100_3078_zpsa968c0eb.jpg photo 53544B_zpsfb23a226.jpg

The new parts shown above:

  • Handle cam lock assembly
  • Pad driver plate bearing (rated EMQ--better than OEM!)
  • Rubber spring mounts
  • Assorted fasteners
  • Dust bag

The retail value of these replacement parts is $152.30! ($89.00 if purchased from my store.)


A dust skirt was not included with this machine. However, if you win this auction and purchase a dust skirt with it, we will refund $32 to your PayPal account, meaning you get this new skirt for only $100!  

 photo 100_7855_zpsf05f0375.jpg




  • Pad and Abrasive Sheet Size: 12 x 18 in. (commonly available, grits range from 12 to 200)
  • Orbital Rate: 3600/minute
  • Orbit Diameter: 1/4"
  • Motor: 1 HP thermally protected
  • Motor manufacturer: Baldor, Ft Smith, Arkansas, USA
  • Power: 110V, 10 Amps
  • Shipping Weight: approx 145 lbs. in two packages
  • Power cord: high-quality rubber sheathing; dust-blocking, impact-resistant plugs; twist-lock connection.
  • Serial number: FA3605
  • Date of Manufacture: January, 2006
  • Made in Springdale, Arkansas, USA!

For those who want more information, you can view the owner's manual for this product on Clarke's website by clicking this link: OBS Operator's Manual  (Will open in a new window).

I also carry parts for this machine, including bearings, springs, pad drivers, handle parts, and more. Check my other items to see what I have listed. Don't see what you're looking for? Use the "Ask a question" link near the bottom of the listing; I may have it on order, or I'll be happy to work out a special order with you.

The OBS-18 is a less aggressive sander.  It is appropriate for lighter work, such as sanding a new floor, finish sanding a drum-sanded floor, sanding after staining or sealing, or scuffing between coats.  It will work for heavier jobs, too, but requires more time than, say, a drum sander. 

NOTE: Some assembly is required. The handle is shipped separately and must be assembled to the base with three bolts. Full instructions with color photographs included.




CLICK TO ENLARGE photo 100_5646_zps9c13cf65.jpg

CLICK TO ENLARGE photo 100_5640_zps4d680440.jpg CLICK TO ENLARGE photo 100_5632_zps2289d019.jpg

Someone will be seeing this view for many productive hours

CLICK TO ENLARGE photo 100_5672_zps4c9e3ca6.jpg





  • Be sure to empty the dust bag when it reaches the full line, or whenever taking a break for more than a few minutes... while extremely unlikely, it is a spontaneous combustion hazard!
  • If the circuit breaker is triggered (small white button on top of the motor junction box) then either the unit is overheating (I have known of this happening when sanding a deck in August; or it could be from prolonged heavy use), or the electrical supply is insufficient.  Be sure not to use an extension cord if at all possible; if you do, it should be a 12-gauge, no longer than 50 feet, or a 10-gauge, no longer than 100 feet.  It could also be that the building circuit you are using is overloaded; if a refrigerator, for example, is running on the same circuit, that's too much!  Running the machine with insufficient current can cause motor damage!
  • You should never use the dust bonnet (plastic "dome" on top of the motor) as a lifting handle.  While the studs attaching it to the motor housing are plenty sturdy enough, they won't stand up to the abuse of lifting 125 lbs!
  • I have known of people adding weight to the machine (even children!!) in order to try to remove material faster.  Don't do dat!  It is pure death on the rubber oscillating springs, and will shorten the life of the motor and bearings; you might also damage the dust bonnet (see previous).
  • Never leave the machine on a hard surface when not in use; it will shorten the life of the pad driver.  Leave it sitting on a pad, or lay it on its back.
  • Finally, to maximize the life of the pad driver and rubber springs, you should replace pads when they have compressed down to 1/2 of their original thickness. 



Almost all of these sanders will tend to "drift" to the right (occasionally left) when running.  This is not a "defect"; it's the nature of the tool, and it can change once the machine "warms up".  Rather than fighting that drift (and getting sore muscles, and cursing the idiot who sold it to you), you can use it to your advantage.

Simply push the sander forwards and backwards, as in the first drawing below, letting it "drift" until you have covered a patch of floor.  This could be a small area, or the entire width of a room.  Once you get to the end of that area, turn it 90 degrees and pull it back to the starting point (second drawing).


Photobucket                         Photobucket                              Photobucket

Now you can go over the same area again (third drawing), or start a new area.


I carry parts for this machine and others, and I'm adding more every week. Check my other items to see what I have listed.



SHIPPING: Because of the size and weight of this sander, it is only being offered in the continental United States. UPS Ground is the only option, and should reach almost anywhere in 2-4 business days (see delivery map below). A signature will be required upon receipt. PayPal's user agreement says that I must ship to the address you provide with your payment, so be sure it's the one you want!

LOCAL PICKUP: NO CHARGE! (Ask me how I deal with sales taxes...)

SOLD AS-IS. THIS ITEM IS AS DESCRIBED, AND IN THE CONDITION DESCRIBED. If the item arrives with any damage, save all packaging materials and contact me immediately. If there are any other problems with the item, please contact me immediately! I will gladly work with you to resolve the issue.

AND THE FINE PRINT: Unless otherwise noted, all description and photos are of the actual item being offered (or an identical item, if new) and nothing else is included. Fitness of the item for any purpose not stated by the manufacturer or in the listing is not implied. Any parts or accessories are intended for use with the stated item, and fitness for any other use is not guaranteed. Minor defects which are cosmetic only and have no effect on the usefulness or life of the item may not be mentioned. Defects which have been satisfactorily repaired may not be mentioned. Shipping times are estimates; may be longer for those who live in the coastal regions. Seller reserves the right to change shipping methods, provided the method used is equal to or faster than that paid by the buyer. Buyer is responsible for knowing and understanding the safe and proper operation of the item; reading the manual thoroughly (if available) is highly recommended. Any questions? ASK!!






Be sure to check back, as I will be offering other fine tools!

tornadoalan assumes full responsibility for all information in this listing

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